53734643777 has 2 divisors, whose sum is σ = 53734643778. Its totient is φ = 53734643776.

The previous prime is 53734643731. The next prime is 53734643821. The reversal of 53734643777 is 77734643735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46074193201 + 7660450576 = 214649^2 + 87524^2 .

It is a cyclic number.

It is not a de Polignac number, because 53734643777 - 2⁶ = 53734643713 is a prime.

It is not a weakly prime, because it can be changed into another prime (53734643077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26867321888 + 26867321889.

It is an arithmetic number, because the mean of its divisors is an integer number (26867321889).

Almost surely, 2^53734643777 is an apocalyptic number.

It is an amenable number.

53734643777 is a deficient number, since it is larger than the sum of its proper divisors (1).

53734643777 is an equidigital number, since it uses as much as digits as its factorization.

53734643777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31116960, while the sum is 56.

The spelling of 53734643777 in words is "fifty-three billion, seven hundred thirty-four million, six hundred forty-three thousand, seven hundred seventy-seven".